The topical message you are about to hear is based on an incident regarding two jets near Denver, Colorado, just a few days before Thanksgiving 2009.
A Skywest Jet and a Republic Jet were on their way to Denver. The Skywest jet was in the air traffic path to land, but the Republic Jet was flying parallel to that path. For the Republic Jet to land, air traffic controllers had to put it on the same path as the Skywest Jet. However, air traffic controllers gave the Republic Jet the wrong heading, causing it to make a U-turn and putting it on a collision course with the Skywest Jet. They were closing in on each other a mile and a half away at 600mph. The collision avoidance systems on the jets sounded telling the pilots to climb! Climb! The pilots immediately obeyed--saving many lives. News reports stated that the jets had merged on radar and were within a blink of an eye from colliding.
There might be related material at http://www.sapphirestreams.com/life/audioM.html#M3 .
Thank you for listening and may God powerfully bless you.